Efficient reflection on structs

[Mason]

@Guillaume_Leclerc

Is there a way I could get something like this:

struct Wrapper{T, F} <: T
    data::T
end

This way I would be able to reuse all the implementations available for T . Since it has the same fields (accessible through getproperty ) it should be swappable in place of any variable of type T .

Am I allowed to override isa or something along those lines ?

No, this is not possible. However, there are a few classes of circumstances where people desire this behaviour: Is Julia's way of OOP superior to C++/Python? Why Julia doesn't use class-based OOP? - #137 by Mason

One can kinda hack their way into this sort of behaviour using IRTools.jl, but I wouldn’t recommend it.